//SamXIAO
#include <bits/stdc++.h>
using namespace std;
#define PI 3.1415926
#define   SQUARE(x) ((x)*(x))
//double SQUARE(double x) { return x*x;}
#define N_MAX 987654321
#define N_MIN -N_MAX
int f[286];
char s1[1086];
char s2[2020];
void w1()
{
	int cnt = 0, ans = 0, n;
	scanf("%[^\n]", s1); // getline
	bool isOk = true;
	for(int i=0; i<strlen(s1); i++) {
		char ch = s1[i], ch2;
		if(     'A' <= ch && ch <= 'Y') ch2 = ch + 1;
		else if('a' <= ch && ch <= 'y') ch2 = ch + 1;
		else if('z' == ch) ch2 = 'a';
		else if('Z' == ch) ch2 = 'A';
		else               ch2 = ch;
		
		printf("%c", ch2);
	}
}

int main()
{
	w1();
  return 0;
}
